ETYM Old Eng. assumpcioun a taking up into heaven, Latin assumptio a taking, from assumere: cf. French assomption. Related to Assume.
1. A hypothesis that is taken for granted; SYN. supposition.
2. The act of taking possession of or power over something; SYN. laying claim.

1 A premise upon which the fulfillment of an agreement depends; stipulation.
2. A provision making the effect of a legal instrument contingent upon an uncertain event; also; the event itself.
3. Something essential to the appearance or occurrence of something else; prerequisite: as an environmental requirement; the subordinate clause of a conditional sentence.
4. A restricting or modifying factor; qualification.
5. An unsatisfactory academic grade that may be raised by doing additional work.
6. A state of being.
7. Social status; rank; a usually defective state of health.
8. A state of physical fitness or readiness for use. + prikaži više

ETYM Written also, less properly, premiss.
A statement that is assumed to be true and from which a conclusion can be drawn; SYN. premiss, assumption.
(British also premiss) proposition, condition or statement from which conclusion is drawn; thing previously stated.

Something that is required in advance; SYN. requirement.

ETYM Pref. pre- + supposition: cf. French présupposition.
1. The act of presupposing; an antecedent implication; presumption.
2. That which is presupposed; a previous supposition or conjecture.

That which is required; necessary for a given effect or end

ETYM French supposition, Latin suppositio a placing under, a substitution, from supponere, suppositium, to put under, to substitute. The word has the meaning corresponding to suppose. Related to Sub-, and Position.
The cognitive process of supposing; SYN. supposal.